Improvement in force-pumps



J. TALLENT. Force-Pump.

No. 196,953. Patented Nov. 6, 1877..

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N-FETERS, PHOTO-LITHOGRAPKER. WASHIYNGYON I} C.

UNITED STATES PATENT OFFICE.

J OHNATHAN TALLENT, OF RIOEVILLE, TENNESSEE.

IMPROVEMENT IN FORCE-PUMPS.

Specification forming part of Letters Patent No. 196,953, dated November6, 1877; application filed August 13, 1877. e

To all whom it may concern:

Be it known that I, J OHNATHAN TALLENT, of Riceville, in the county ofMcMinn and State of Tennessee, have invented certain new and usefulImprovements in Pumps; and I do hereby declare that the following is afull, clear, and exact description thereof, which will enable othersskilled in the art to which it appertains to make and use the same,reference being had to the accompanying drawing, which forms a part ofthis specification, and which represents a vertical cross-section of myinvention.

This invention relates to certain improvements in pumps, and moreespecially to the improved construction of the piston, as I shall nowproceed more fully to describe.

In the drawing, A is a cylinder, which is disposed horizontally at thetop, bottom, or

. any intermediate point in the well, the latter being preferable v as,when arranged at the middle of the well, the columns of water above andbelow it are about equally balanced, thus requiring equal force in theup and down stroke of the operating lever or handle. Cylinder A has, atthe end, a coupling, B, by which it is connected with two othercylinders or tubes, one of which, 0, extends downward to' the bottom ofthe well, and the other, D, upward above the curb, where it is providedwith a spout, d. Tube 0 has, at or near the top, a valve, at, openingupward,.and--a.similar valve, 1), is arranged in tube D, at or near thelower end thereof.

G is the piston, which slides in cylinder A. It is connected, by apivoted connecting-rod, c, with the lower arm 0 of a T-shaped lever, E,having its fulcrum at f, where it is pivoted to a supporting-bracket.Piston Gr consists of' two heads, 9 9, connected by a central rod, h,around which the packing H, consisting of leather or other suitablematerial, is wrapped.

The inner head 9 of the piston is made concave, in order to expel sand,(when used at the bottom of the well,) which might otherwise interferewith the operation of the valves a b.

To the ends of the arms 7' j of the T-shaped lever E are hinged orpivoted rods I I, the upper ends of which are similarly hinged orpivoted to the operating lever or handle J, which is pivoted to anupright, K, above the curb, the points 'i i, at which rods I I arehinged to lever J, being, of course, on different sides of the fulcrumthereof.

The operation of my improved pump will be readily understood from theforegoing description-and by reference to the drawing hereto annexed. Byoperating the'lever J the piston G is reciprocated in cylinder A, thusalternately drawing water from the well through tube 0, and forcing itout through tube D. If sand is raised with the water, it will accumulatein the concavity of piston-head g, and thus not interfere withtheworking of the valves.

The operating device, consisting of lever J, connecting-rods I, andT-shaped lever E, is simple, and not apt to get out of order, and, asgreat leverage may be had, the pump is easily operated.

Having thus described my invention, I claim and desire to secure byLetters Patent'of the United States- The piston G, consisting of heads 9g, the former having concave face, connected by rod h, around which thepacking H is wrapped, substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my own I have hereto affixedmy signature in presence of two witnesses.

J OHNATHAN TALLENT.

